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Trans-oceanic class ultra-long-haul transmission using multi-core fiber
Optics Express
|January 22, 2015
Summary
Space-division multiplexing using multi-core fiber (MCF) boosts optical communication capacity. This technology achieved 140 Tbit/s over 7326 km, paving the way for future ultra-high capacity systems.
Area of Science:
- Optical Communications
- Photonics
- Telecommunications Engineering
Background:
- Optical communication systems face increasing demand for higher data transmission capacity.
- Multi-core fiber (MCF) with space-division multiplexing (SDM) offers a path to overcome current capacity limitations.
- Minimizing inter-core crosstalk is crucial for effective MCF performance.
Purpose of the Study:
- To demonstrate the feasibility of ultra-long-haul transmission using uncoupled multi-core fiber.
- To evaluate the capacity enhancement achievable with MCF combined with spectral efficient modulation.
- To assess the capacity-distance product for future optical network planning.
Main Methods:
- Utilized a 7-core multi-core fiber (MCF) designed to suppress inter-core crosstalk.
- Employed a spectral efficient modulation format to maximize data transmission rates.
- Conducted transmission experiments over an ultra-long-haul distance of 7326 km.
Main Results:
- Successfully achieved trans-oceanic class ultra-long-haul transmission using the 7-core MCF.
- Increased the fiber capacity from 28.8 Tbit/s to 140 Tbit/s.
- Obtained a capacity-distance product exceeding 1 Exabit/s·km.
Conclusions:
- Multi-core fiber (MCF) with suppressed crosstalk is a viable technology for ultra-high capacity optical communication.
- The combination of MCF and advanced modulation formats significantly enhances transmission capacity and reach.
- MCF technology shows strong potential for future ultra-high capacity optical communication systems.
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